Newby Question. Hunting rifle upgrade

Great. I was happy to get it. My shot is on a road that we cut threw the woods is about 12ft. wide and 600ft long. I only have a few seconds when deer are crossing to get the shot off. The deer I shot this year was walking about 250 yds. He ran about 100ft in the woods , wasn't hard to track once I found the blood trail, The problem is finding the blood trail right were he went in the woods. I was totally off from were I thought he came out. With the finder in the scope I should be able to range him before I shoot, then have my partner walk to the same distance and range him. Hope to get some corn feeders up down the road to slow them down, or stop them about every 100yds.